ASTROSAT CZTI

Data Quality Report

Orbit 46647

Creation date: 2024-06-27T23:25:51.479321
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A13_039T01_9000006246_46647cztM0_level2.fits modeM0/AS1A13_039T01_9000006246_46647cztM0_level2_quad_clean.evt
Size (bytes)396,129,60095,397,120
Size377.8 MB 91.0 MB
Events in quadrant A5,515,676619,810
Events in quadrant B3,253,350650,292
Events in quadrant C2,539,805635,421
Events in quadrant D2,899,978574,232

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020454130
B013993101
C01213662
D01317173

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58391853.168351%
B58481742.975376%
C5849340.581296%
D5848731.248290%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7028 5879 71 71 1.01% 1.21%
B 7028 5879 91 91 1.29% 1.55%
C 7028 5878 2 2 0.03% 0.03%
D 7028 5878 43 43 0.61% 0.73%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 10 83 2964937 23244.79 609 596 127.5
A 13 248 84736 659.78 609 596 127.5
A 0 247 61253 475.64 609 596 127.5
B 5 32 242680 2014.85 617 599 120.1
B 5 255 202091 1677.03 617 599 120.1
B 0 189 113667 941.07 617 599 120.1
C 9 237 46361 316.8 614 618 144.4
C 14 254 38651 263.4 614 618 144.4
C 12 250 17241 115.12 614 618 144.4
D 13 249 187832 1202.21 608 587 155.8
D 1 52 111040 709.16 608 587 155.8
D 12 128 98522 628.79 608 587 155.8

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter